Making Cannon

Artilleryman said:
Please look at thread #189 , 6th photo named “barra anteriore 2”
only the cannon in the foreground , has a cylindrical object sticking out , under what I believe to be a pivot point
other photos show how the pivot point is solidly connected to the slides and also to the front plate
in my opinion the bar to the rear , is connected to this crossbar

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A photo of a model ?Russian ship deck with a Dahlgren gun mounted. Note the multiple pivot points on the deck and the wooden gun chassis, supporting the idea that the pivot rod in the above drawing was removeable. (can't locate attribution details. I will add them when located.)
Attribution: Vladimir Temnikov
Screenshot 2025-03-20 124527.png
 
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johnv said:
A photo of a model ?Russian ship deck with a Dahlgren gun mounted. Note the multiple pivot points on the deck and the wooden gun chassis, supporting the idea that the pivot rod in the above drawing was removeable. (can't locate attribution details. I will add them when located.)
Click to expand...
please look at #240 to #253
a similar system of bronze tracks to the deck, see H.M.S. Warrior
 

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Artilleryman said:
Please look at thread #189 , 6th photo named “barra anteriore 2”
only the cannon in the foreground , has a cylindrical object sticking out , under what I believe to be a pivot point
other photos show how the pivot point is solidly connected to the slides and also to the front plate
in my opinion the bar to the rear , is connected to this crossbar

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Click to expand...
Artilleryman, I wonder if the traversing gear assembly was originally located on both sides. From the photos it appears that both sides could have housed the assembly, even though all of the guns shown have the assembly on one side only.
No response yet from the museum.
That is an excellent drawing. Could I possibly have a copy of the dxf please? (or a dwg.)
 
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Artilleryman said:
please look at #240 to #253
a similar system of bronze tracks to the deck, see H.M.S. Warrior
Click to expand...
Indeed yes. And the "Ordnance Instructions" #202 is a gold mine of information. And for the Dahlgren XI pivot gun clearly states that the pivot plate (and presumably the pin) is removeable and able to be placed at different pivot points. Thankyou!
 
johnv said:
Artilleryman, I wonder if the traversing gear assembly was originally located on both sides. From the photos it appears that both sides could have housed the assembly, even though all of the guns shown have the assembly on one side only.
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Hi Johnv
I think you're right, the direction gear system was mounted on both sides, I looked and looked the photos and it seems that the 1st cannon near the building has both ... I'll see if I can find some more photos
I'm attaching the screenshot of the lever for the cannon advancement system

lever for cannon advancement system.jpg
 
For those interested in Civil War era naval artillery and like me prefer actual hardcover books the 1866 Ordnance Instructions have been published by the University of Michigan’s Michigan Historical Series. Unlike many of these scanned reprints, this is a high quality book. I found only one omission: A drawing of the tent used to cover the warship’s launch when on expeditions is missing.

Roger
 
Roger Pellett said:
For those interested in Civil War era naval artillery and like me prefer actual hardcover books the 1866 Ordnance Instructions have been published by the University of Michigan’s Michigan Historical Series. Unlike many of these scanned reprints, this is a high quality book. I found only one omission: A drawing of the tent used to cover the warship’s launch when on expeditions is missing.

Roger
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Roger, I too prefer good hard copy books, but I could not find the University of Michigan's source that you mentioned. Do you have a link please?
 
et voilà
Here you can also find "A treatise on the construction and manufacture of ordnance in the British service" .... (everything and more about Armstrong cannons)

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Artilleryman said:
Hi Johnv
I think you're right, the direction gear system was mounted on both sides, I looked and looked the photos and it seems that the 1st cannon near the building has both ... I'll see if I can find some more photos
I'm attaching the screenshot of the lever for the cannon advancement system

View attachment 509263
Click to expand...

Artilleryman said:
et voilà
Here you can also find "A treatise on the construction and manufacture of ordnance in the British service" .... (everything and more about Armstrong cannons)

View attachment 509488
Click to expand...
 
johnv said:
Another of my models to add to this discussion. 1866 muzzle loading 80pr Armstrong. Rifled.
Based on originals still existing at Port Fairy and Warrnambool, Victoria, Australia. 1:10 scale. Scratch built model.
Sights were added since these photos were taken.
The last 4 photos show the gun in the loading and firing positions.
No, it cannot be fired. No vent.

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beautiful! nice work!
 
Thankyou Artilleryman,
I have a well thumbed hardcopy of the "......Ordnance in the British Service", and an electronic copy of the "Ordnance Instructions.......".
Sometimes the facsimile copies of the old books are too small and difficult or impossible to see details of drawings, and particularly dimension numbers. Are you happy with the quality of your amazon version of Ordnance Instructions?
 
Artilleryman said:
Hi Johnv
I think you're right, the direction gear system was mounted on both sides, I looked and looked the photos and it seems that the 1st cannon near the building has both ... I'll see if I can find some more photos
I'm attaching the screenshot of the lever for the cannon advancement system

View attachment 509263
Click to expand...
Artilleryman, your dwg's are excellent! I do hope that they will be available in dwg and dxf formats.
 
John’s Post 207

Thrift books has 50 copies of the Michigan Ordnance Instructions reprint listed for sale. I don’t know if it’s hardback as I believe that they also published a paperback edition. Make sure it’s the Michigan reprint as they also have copies by others.

Roger
 
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